downstream of the dam

ANADROMOUS STURGEONS (ACIPENSERIDAE, ACTINOPTERYGII) OF THE DON RIVER ABOVE THE TSIMLYANSK DAM

Based on the literature, non-published and survey data, information on the occurrence of anadromous sturgeons after the regulation of the Don River downstream and upstream of the Tsimlyansk Dam is given. There were two peaks of mature adults approaching the dam, namely, in the 1950s and 1980s. The first mass peak was associated with the wild population existed then; the second one was a result of mass artificial breeding.